Integrity & sustainability. Wine and Spirit Board: www.swsa.co.za. Mulderbosch is widely considered one of South Africa's iconic wineries and has established a reputation for excellence since 1989. We are tireless in our pursuit of making wines of the highest quality that honour our proud heritage and can be enjoyed by all. www.mulderbosch.co.za. Conservation in Action: www.bwi.co.za. Alc 13.5% by vol. Wine of South Africa. Wine of origin Western Cape. Product of South Africa.